MOUNTING AND WIRING

Do not use on circuits exceeding specified voltage.

Higher voltage will damage control and could cause shock or fire hazard.

Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring will damage thermostat and could cause personal injury and/or property damage.

Thermostat installation and all components of the system shall conform to Class II circuits per the NEC code.

Electric/Gas Switch (Fan Option)

This thermostat is configured from the factory to operate a heat/ cool, fossil fuel (gas, oil, etc.), forced air system. It is configured correctly for any system that DOES NOT require the thermostat to energize the fan on a call for heat. If you system is an electric heat or heat-pump system that REQUIRES the thermostat to turn on the fan on a call for heat, locate the ELEC/GAS switch on the back of the thermostat (see fig. 1) and switch it to the ELEC position. This wilt allow the thermostat to energize the fan immediately on a call for heat. If you are unsure if the heating/ cooling system requires the thermostat to control the fan, contact a qualified heating and air conditioning service person.

When the thermostat is configured for Heat Pump, the thermo- stat will always power the circulator fan on a call for heat in the HEAT mode. The ELEC/GAS switch must be set to match the

type of Auxiliary heat your system uses for proper operation in the EMERgency mode.

All wiring diagrams are for typical systems only. Refer to equipment manufacturers' instructions for specific system wir- ing information.

Take care when securingand routingwires so they do not short to adjacent terminals or rear of thermostat. Personal injury and/or property damage may occur.

Attach Thermostat Base to Wall

1.Remove the packing material from the thermostat. Gently pull the cover straight off the base. Forcing or prying on the thermostat will cause damage to the unit.

2.Connect wires beneath terminal screws on base using appropriate wiring schematic (see figs. 2 through 4).

3.Place base over hole in wall and mark mounting hole locations on wall using base as a template.

4.Move base out of the way. Drill mounting holes.

5.Fasten base loosely to wall, as shown in fig. 1, using two mounting screws. Place a level against bottom of base, adjust until level, and then tighten screws. (Leveling is for appearance only and will not affect thermostat operation.) If you are using existing mounting holes, or if holes drilled are too large and do not allow you to tighten base snugly, use plastic screw anchors to secure subbase.

6.Push excess wire into wall and plug hole with a fire- resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.

Battery Location

2 "AA" alkaline batteries are included in the thermostat at the factory with a battery tag to prevent power drainage. You must remove the battery tag to engage the batteries.

If "BATT" is displayed, the batteries are low and should be replaced with fresh "AA" Energizer@ alkaline batteries. To replace batteries, press system button to OFF, install the batteries along the top of the base (see Fig. 1). The batteries must be installed with the positive (+) end to the left.

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Figure 3. Typical wiring diagram for two transformer heat pump systems with NO safety circuits *The24voltneutralconnectiontoterminalC on thethermostatis notrequiredifyou replacethebatteriesonceayearwithfresh"AA"EnergizePalkalinebattenes. 2

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White Rodgers 1F85-277 installation instructions Mounting and Wiring, System, Battery Location, 14Wlcoo,Modell Plea

1F85-277 specifications

The White Rodgers 1F85-277 is an advanced programmable thermostat known for its versatility, energy-efficiency, and user-friendly design. It stands as a reliable choice for homeowners looking to enhance their heating and cooling systems' functionality while minimizing energy consumption.

One of the key features of the 1F85-277 is its 7-day programmable capability, which allows users to set schedules for different days of the week. This flexibility ensures that the home is heated or cooled according to individual preferences, thereby optimizing energy usage and providing comfort when it’s needed the most. The thermostat can program up to four different temperature settings per day, allowing precise control over home climate conditions.

Another notable characteristic of the White Rodgers 1F85-277 is its intuitive LCD display. The backlit screen is easy to read, displaying current temperature settings, scheduled programs, and system alerts clearly. This feature is especially useful during nighttime or low-light conditions. The interface allows for straightforward navigation, making it simple for users to create and modify schedules without the need for complex instructions.

The thermostat also integrates advanced technologies, including Smart Recovery. This technology ensures that the home reaches the desired temperature at the programmed time by anticipating how long it takes to heat or cool. By learning from previous system performance, it improves efficiency while maintaining home comfort.

Additionally, the White Rodgers 1F85-277 is compatible with most heating and cooling systems, including gas, electric, and heat pump systems. It supports both single-stage and multi-stage heating and cooling, providing flexibility and compatibility for various home setups.

A significant advantage is its energy-saving features, which can lead to reduced utility bills. By allowing homeowners to schedule their HVAC systems more efficiently, the 1F85-277 plays a crucial role in energy conservation efforts.

Furthermore, installation is straightforward, as the thermostat is designed with a user-centric approach, allowing most homeowners to install it without professional help.

Overall, the White Rodgers 1F85-277 combines advanced technology with practical features, making it an ideal solution for those seeking to improve home comfort while managing energy costs effectively. Its programmable functionality, user-friendly interface, and compatibility with diverse heating and cooling systems make it a standout product in the thermostat market.